A HIGH-severity vulnerability identified as CVE-2025-13673 has been published on February 28, 2026 with a CVSS base score of 7.5. This security advisory provides a detailed breakdown of the vulnerability, its potential impact, weakness classification, and actionable steps to protect your systems.
Vulnerability Details
CVE ID: CVE-2025-13673
Severity: HIGH
CVSS Score: 7.5
Published: February 28, 2026
Weakness (CWE): CWE-89
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Confidentiality Impact | High |
| Integrity Impact | None |
| Availability Impact | None |
Technical Description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to SQL Injection via the 'coupon_code' parameter in all versions up to, and including, 3.9.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. NOTE: This vulnerability was partially mitigated in versions 3.9.4 and 3.9.6.
Potential Impact
If exploited, this high-severity vulnerability could allow an attacker to compromise sensitive data confidentiality. Organizations running affected software should treat this as a priority remediation item.
Recommended Action
No official patch is available yet. Until one is released:
- Monitor the official NVD page and vendor channels for patch announcements.
- Restrict access to the affected system or service where possible.
- Apply network-level mitigations such as firewall rules or WAF policies.
- Enable logging and alerting for anomalous activity related to this vulnerability.
- Review your incident response plan in case of active exploitation.
References
Related Security Advisories
- [HIGH] CVE-2026-1367 — CVSS 8.3 (February 23, 2026) — HIGH / CVSS 8.3
- [HIGH] CVE-2026-3169 — CVSS 8.8 (February 25, 2026) — HIGH / CVSS 8.8
- [HIGH] CVE-2025-40540 — CVSS 7.2 (February 24, 2026) — HIGH / CVSS 7.2
![[CRITICAL] CVE-2026-28773 — CVSS 9.3 (March 4, 2026)](https://atlas-cybersecurity.com/wp-content/plugins/elementor/assets/images/placeholder.png)
